From: Miles Bader <miles@gnu.org>
Date: Mon, 4 Sep 2000 11:55:02 +0000 (+0000)
Subject: (XlwMenuSetValues): Only frob the display if the menu is actually displayed.
X-Git-Tag: emacs-pretest-21.0.90~1814
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=da353f232d84f8fbce0a34d6087f5e8edb17d798;p=emacs.git

(XlwMenuSetValues): Only frob the display if the menu is actually displayed.
---

diff --git a/lwlib/xlwmenu.c b/lwlib/xlwmenu.c
index 1ced18a5eb2..2239fb4b958 100644
--- a/lwlib/xlwmenu.c
+++ b/lwlib/xlwmenu.c
@@ -1813,15 +1813,17 @@ XlwMenuSetValues (current, request, new)
 
       redisplay = True;
       
-      for (i = 0; i < oldmw->menu.windows_length; i++)
-	{
-	  XSetWindowBackground (XtDisplay (oldmw),
-				oldmw->menu.windows [i].window,
-				newmw->core.background_pixel);
-	  /* clear windows and generate expose events */
-	  XClearArea (XtDisplay (oldmw), oldmw->menu.windows[i].window,
-		      0, 0, 0, 0, True);
-	}
+      if (XtIsRealized (oldmw))
+	/* If the menu is currently displayed, change the display.  */
+	for (i = 0; i < oldmw->menu.windows_length; i++)
+	  {
+	    XSetWindowBackground (XtDisplay (oldmw),
+				  oldmw->menu.windows [i].window,
+				  newmw->core.background_pixel);
+	    /* clear windows and generate expose events */
+	    XClearArea (XtDisplay (oldmw), oldmw->menu.windows[i].window,
+			0, 0, 0, 0, True);
+	  }
     }
 
   return redisplay;